普遍接受的变量名称格式 - C / C ++ [英] Commonly Accepted Variable Name Formatting - C/C++

问题描述

我知道这可能是preference的事，但我注意到，在很多code样品我见过的变量名具有的preFIX摹_ ，取值_ ，米_ ，或只是 _ 。这是一个普遍接受的做法，而这些prefixes什么意思呢？是否有任何其他人，将是很好的了解？

I realize that this can be a matter of preference, but I have noticed that variables names in a lot of code samples I've seen have a prefix of g_, s_, m_, or just _. Is this a commonly accepted practice, and what do these prefixes mean? Are there any others that would be good to know?

推荐答案

• 摹_ 是一个全局变量


• 取值_ 是一个静态


• 米_ 是成员（实例变量）


• _ 是成员，或者更具体的私有成员（包括用法转起来）

• g_ is a global variable
• s_ is a static
• m_ is a member (an instance variable)
• _ is either a member, or more specifically a private member (both usages turn up)

这是常见的，以至于很多开发人员了解它，虽然它不是（据我所知）普遍接受。我不认为你缺少任何人。

This is common enough that many developers know about it, although it is not (to my knowledge) universally accepted. I don't think you are missing any others.

更新：更好的能见度低于整合意见

Update: Integrating comments below for better visibility



• _ ，也可以用来表示一个局部变量（这个真的是没有标准）


• K 可以用来表示一个常数


• _ can also be used to denote a local variable (this one really isn't "standard")
• k can be used to denote a constant

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